Flexural and eigen-buckling analyses for rectangular steel-concrete partially composite plates(PCPs)with interlayer slip under simply supported and clamped boundary conditions are conducted using the weak form quadrat...Flexural and eigen-buckling analyses for rectangular steel-concrete partially composite plates(PCPs)with interlayer slip under simply supported and clamped boundary conditions are conducted using the weak form quadrature element method(QEM).Both of the derivatives and integrals in the variational description of a problem to be solved are directly evaluated by the aid of identical numerical interpolation points in the weak form QEM.The effectiveness of the presented numerical model is validated by comparing numerical results of the weak form QEM with those from FEM or analytic solution.It can be observed that only one quadrature element is fully competent for flexural and eigen-buckling analysis of a rectangular partially composite plate with shear connection stiffness commonly used.The numerical integration order of quadrature element can be adjusted neatly to meet the convergence requirement.The quadrature element model presented here is an effective and promising tool for further analysis of steel-concrete PCPs under more general circumstances.Parametric studies on the shear connection stiffness and length-width ratio of the plate are also presented.It is shown that the flexural deflections and the critical buckling loads of PCPs are significantly affected by the shear connection stiffness when its value is within a certain range.展开更多
Anton Webem＇s （1883-1945） largest project of the early the 1930s, the Concerto for Nine （solo） Instrument＇s Op. 24, is for flute, oboe, clarinet, horn, trumpet, trombone, violin, viola, and piano. This serial w...Anton Webem＇s （1883-1945） largest project of the early the 1930s, the Concerto for Nine （solo） Instrument＇s Op. 24, is for flute, oboe, clarinet, horn, trumpet, trombone, violin, viola, and piano. This serial work＇s analysis became almost as famous as the concerto itself. Highly economical, short, concentrated and free relationship between the intervals take over from tonality as the main organizational principle ＂pontillistic＂ style. The clear and transparent frame ＂Klangfarbenmelodie＂, is a row, that was distributed among different instruments. So that, several notes can be heard in the same timbre. Like most of Webern works, there are quiet special effects like a whisper, string harmonics, pizzicato, muting, and athematic intevalic cells as the basic structural element. Concerto for Nine Instruments has succeeding series of twelve-tone works. Webern worked for a long time on the Concerto＇s raw, trying to arrive at an equivalent to the Latin word-square palindrome which reads the same left to right from the top, right to left from the bottom, downwards from the top left, or upwards from the bottom right.SATOR AREPO TENET OPERA ROTAS展开更多
基金Project(51508562)supported by the National Natural Science Foundation of ChinaProject(ZK18-03-49)supported by the Scientific Research Program of National University of Defense Technology,China
文摘Flexural and eigen-buckling analyses for rectangular steel-concrete partially composite plates(PCPs)with interlayer slip under simply supported and clamped boundary conditions are conducted using the weak form quadrature element method(QEM).Both of the derivatives and integrals in the variational description of a problem to be solved are directly evaluated by the aid of identical numerical interpolation points in the weak form QEM.The effectiveness of the presented numerical model is validated by comparing numerical results of the weak form QEM with those from FEM or analytic solution.It can be observed that only one quadrature element is fully competent for flexural and eigen-buckling analysis of a rectangular partially composite plate with shear connection stiffness commonly used.The numerical integration order of quadrature element can be adjusted neatly to meet the convergence requirement.The quadrature element model presented here is an effective and promising tool for further analysis of steel-concrete PCPs under more general circumstances.Parametric studies on the shear connection stiffness and length-width ratio of the plate are also presented.It is shown that the flexural deflections and the critical buckling loads of PCPs are significantly affected by the shear connection stiffness when its value is within a certain range.
文摘Anton Webem＇s （1883-1945） largest project of the early the 1930s, the Concerto for Nine （solo） Instrument＇s Op. 24, is for flute, oboe, clarinet, horn, trumpet, trombone, violin, viola, and piano. This serial work＇s analysis became almost as famous as the concerto itself. Highly economical, short, concentrated and free relationship between the intervals take over from tonality as the main organizational principle ＂pontillistic＂ style. The clear and transparent frame ＂Klangfarbenmelodie＂, is a row, that was distributed among different instruments. So that, several notes can be heard in the same timbre. Like most of Webern works, there are quiet special effects like a whisper, string harmonics, pizzicato, muting, and athematic intevalic cells as the basic structural element. Concerto for Nine Instruments has succeeding series of twelve-tone works. Webern worked for a long time on the Concerto＇s raw, trying to arrive at an equivalent to the Latin word-square palindrome which reads the same left to right from the top, right to left from the bottom, downwards from the top left, or upwards from the bottom right.SATOR AREPO TENET OPERA ROTAS
